Taking away a city's rubbish is a big job. Every day trucks come into a city to collect it. Most rubbish is made up of things we can't eat or use. If we kept these things we would soon have a mountain of rubbish.
In some cities the rubbish is collected and taken outside of city to a dump. Often the city dump is placed where the ground is low or there is a big hole. The kitchen rubbish is broken into small pieces and sent into the sewage system. The sewage system takes away the used water from toilets, bathtubs and other places.
To keep mice and flies away, some earth is used to cover the newly dumped rubbish. Later, grass may be planted on the rubbish-filled land. Finally, a house or a school may be built there, and then you'd never know that this had once been an old rubbish dump.
In other cities the rubbish is burnt in special places. The fire burns everything but the metal.
Sometimes the metal can be used again in factories where things are made of metal. The food parts of rubbish are put in special piles where they slowly change into something called humus, which looks like black earth. It is rich with the kinds of things that feed plants and help them grow.
小題1:You can most probably read the passage in_______.
A．a(chǎn) science bookB．a(chǎn) TV guideC．a(chǎn) history bookD．a(chǎn) telephone book
小題2: The main idea of the passage is_______.
A．to let us know taking away rubbish is a big job
B．to explain the need for rubbish collection
C．to introduce different ways to treat rubbish
D．to tell people to take useful things out of rubbish
小題3:The underlined word "sewage" in the passage means_______.
A．污水B．香腸C．垃圾D．糞便
小題4: How should we take care of a used metal box according to the passage?
A．By burning it off.B．By putting it in water.
C．By throwing it away.D．By reusing and recycling it.

小題1:A
小題2:C
小題3:A
小題4:D

試題分析：本文是如何處理城市垃圾的科普小論文，主要講述了城市如何處理垃圾。
小題1:A 綜合判斷題。細(xì)讀全文知道：本文是關(guān)于如何處理城市垃圾的小論文，故應(yīng)在科普書中涉及，故選A。
小題2:C綜合判斷題。根據(jù)文章主要介紹了收集、燃燒、再利用等幾種處理垃圾的方式方法，故選C。
小題3:A 詞義推斷題。根據(jù)這句話：The sewage system takes away the used water from toilets, bathtubs and other places.污水系統(tǒng)中帶走了從廁所，浴缸和其他的地方來(lái)的用過(guò)的水，故選A。
小題4:D 細(xì)節(jié)理解題。根據(jù)文章最后一段Sometimes the metal can be used again in factories where things are made of metal.有時(shí)金屬在制造金屬的工廠可再使用。故選D。
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